public IEnumerator SecondPartTutoEnum()
{
//Rescaling RectTransform
//a. Récupération du nombre d'enfant et calcul de la taille du rect
numberOfScreen = tutoCombatScreenHolder.transform.childCount;
trueScreenWidth = rectTrans.rect.height;
//b. Rescaling
RectTransformExtensions.Bottom(tutoCombatScreenHolder.GetComponent <RectTransform>(), -trueScreenWidth * numberOfScreen);
TransitionSlideIn();
yield return(new WaitForSeconds(1f));
TutorielManager.Instance.MenuGO.SetActive(false);
TutorielManager.Instance.SecondTuto.SetActive(true);
TransitionSlideOut();
}